Weather Records on 28 July 1921

92 weather records were set or tied worldwide on 28 July 1921. Highest significance: Karlsruhe, DE.

Key Facts for 28 July 1921

On 28 July 1921, 92 weather records were set or tied at long-record stations worldwide.
62 were record highs and 1 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 2 monthly and 84 daily.
Karlsruhe set an all-time record high maximum temperature of 38.2 C (100.8 F) on 28 July 1921.
Across 155 earlier years (1815 to 2026) the same calendar date averaged 475 records.

Record Map

92 stations

92 station records on 28 July 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 July 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Karlsruhe	Germany	Record high maximum temperature	38.2 C (100.8 F)	37 of 100 (Notable)
Narre Warren North (Narre Warr	Australia	Record daily precipitation	31.2 mm (1.2 in)	34 of 100 (Routine)
Freiburg	Germany	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	37.0 C (98.6 F)	33 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	35.6 C (96.1 F)	32 of 100 (Routine)
Uccle	Belgium	Record high maximum temperature	36.5 C (97.7 F)	31 of 100 (Routine)
Plauen	Germany	Record high maximum temperature	36.2 C (97.2 F)	30 of 100 (Routine)
Zagreb-Gric	Croatia	Record high maximum temperature	36.8 C (98.2 F)	25 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Freiburg	Germany	Record high maximum temperature	38.5 C (101.3 F)	21 of 100 (Routine)
Ocean Grove	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Balmoral (Post Office)	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	18.8 C (65.8 F)	20 of 100 (Routine)
Beeac (Eurack)	Australia	Record daily precipitation	15.2 mm (0.6 in)	18 of 100 (Routine)
Ottawa	Canada	Record daily precipitation	20.3 mm (0.8 in)	18 of 100 (Routine)
Southampton	Canada	Record daily precipitation	20.6 mm (0.8 in)	18 of 100 (Routine)
Fredericton Unb	Canada	Record high maximum temperature	35.0 C (95.0 F)	18 of 100 (Routine)
Beenak	Australia	Record daily precipitation	36.6 mm (1.4 in)	17 of 100 (Routine)
Galway	Ireland	Record low maximum temperature	16.1 C (61.0 F)	17 of 100 (Routine)
Bamberg	Germany	Record high maximum temperature	37.3 C (99.1 F)	17 of 100 (Routine)
Wilmington Wb City	United States	Record daily precipitation	25.1 mm (1.0 in)	17 of 100 (Routine)
Geelong Sec	Australia	Record daily precipitation	15.0 mm (0.6 in)	16 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record daily precipitation	25.6 mm (1.0 in)	16 of 100 (Routine)
Karlsruhe	Germany	Record high minimum temperature	21.2 C (70.2 F)	16 of 100 (Routine)
Alma	United States	Record daily precipitation	22.9 mm (0.9 in)	16 of 100 (Routine)
Buchan	Australia	Record daily precipitation	8.1 mm (0.32 in)	15 of 100 (Routine)
Pennyroyal Creek	Australia	Record daily precipitation	16.8 mm (0.7 in)	15 of 100 (Routine)
Welland	Canada	Record high minimum temperature	23.9 C (75.0 F)	15 of 100 (Routine)
Chatham	Canada	Record high minimum temperature	20.6 C (69.1 F)	15 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record high maximum temperature	34.3 C (93.7 F)	15 of 100 (Routine)
Hohenpeissenberg	Germany	Record high maximum temperature	30.1 C (86.2 F)	15 of 100 (Routine)
Lubeck-Werft	Germany	Record high minimum temperature	17.8 C (64.0 F)	15 of 100 (Routine)
Somerville 4 NW	United States	Record high minimum temperature	22.8 C (73.0 F)	15 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	23.9 C (75.0 F)	15 of 100 (Routine)
Coranderrk Badger Weir	Australia	Record daily precipitation	16.8 mm (0.7 in)	14 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	21.7 C (71.1 F)	14 of 100 (Routine)
Alton	Canada	Record high minimum temperature	20.6 C (69.1 F)	14 of 100 (Routine)
Kirchdorf/Poel	Germany	Record high minimum temperature	16.5 C (61.7 F)	14 of 100 (Routine)
Bologna	Italy	Record high minimum temperature	26.6 C (79.9 F)	14 of 100 (Routine)
Lawrence	United States	Record daily precipitation	30.2 mm (1.2 in)	14 of 100 (Routine)
Harrisburg - Coop	United States	Record high minimum temperature	23.9 C (75.0 F)	14 of 100 (Routine)
Manfred	Australia	Record daily precipitation	2.8 mm (0.11 in)	13 of 100 (Routine)
Wilsons Promontory Lighthouse	Australia	Record daily precipitation	26.7 mm (1.1 in)	13 of 100 (Routine)
Warburton	Australia	Record daily precipitation	29.5 mm (1.2 in)	13 of 100 (Routine)
Portarlington	Australia	Record daily precipitation	11.4 mm (0.4 in)	13 of 100 (Routine)
Port Dover	Canada	Record high minimum temperature	23.9 C (75.0 F)	13 of 100 (Routine)
Lindsay	Canada	Record high minimum temperature	20.6 C (69.1 F)	13 of 100 (Routine)
Point Amour	Canada	Record daily precipitation	31.8 mm (1.3 in)	13 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record high minimum temperature	21.6 C (70.9 F)	13 of 100 (Routine)
Saentis	Switzerland	Record high minimum temperature	11.3 C (52.3 F)	13 of 100 (Routine)
Kingston Queens U	Canada	Record high minimum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Hohenpeissenberg	Germany	Record high minimum temperature	20.2 C (68.4 F)	12 of 100 (Routine)
Bloukrans (Bos)	South Africa	Record daily precipitation	10.4 mm (0.4 in)	12 of 100 (Routine)
Adelaide West Terrace	Australia	Record high maximum temperature	19.7 C (67.5 F)	11 of 100 (Routine)
Lobethal	Australia	Record daily precipitation	20.3 mm (0.8 in)	11 of 100 (Routine)
Schwerin	Germany	Record high minimum temperature	18.0 C (64.4 F)	11 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record high maximum temperature	29.2 C (84.6 F)	11 of 100 (Routine)
Lilydale	Australia	Record daily precipitation	14.7 mm (0.6 in)	10 of 100 (Routine)
Brighton Middle	Australia	Record daily precipitation	8.9 mm (0.35 in)	10 of 100 (Routine)
Hamilton	Canada	Record high minimum temperature	24.4 C (75.9 F)	10 of 100 (Routine)

Counts by Type and Timescale

92 records

Records set or tied on 28 July 1921 by type: Highest daily maximum 20, Lowest daily maximum 1, Highest daily minimum 42, Heaviest daily rainfall 29.

Records on 28 July 1921 by type
Record type	Records
Highest daily maximum	20
Lowest daily maximum	1
Highest daily minimum	42
Lowest daily minimum	0
Heaviest daily rainfall	29
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 July 1921 by timescale: all-time 6, monthly 2, daily 84.

How Much Records Were Beaten By

82 broken records

Margins by which the 82 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 12.7. Ties are not counted.

Top 20 by Significance

28 July 1921

Top 20 records on 28 July 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 July 1921	Karlsruhe, DE	all-time high max	38.2 C (100.8 F)	2.2 C (4.0 F)	28 years	37 of 100 (Notable)
28 July 1921	Narre Warren North (Narre Warr, AU	daily rain	31.2 mm (1.2 in)	10.1 mm (0.4 in)	37 years	34 of 100 (Routine)
28 July 1921	Freiburg, DE	daily high min	25.0 C (77.0 F)	7.1 C (12.8 F)	20 years	34 of 100 (Routine)
28 July 1921	Heinersreuth-Vollhof, DE	all-time high max	37.0 C (98.6 F)	0.8 C (1.4 F)	27 years	33 of 100 (Routine)
28 July 1921	Weissenburg, DE	all-time high max	35.6 C (96.1 F)	0.2 C (0.4 F)	28 years	32 of 100 (Routine)
28 July 1921	Uccle, BE	all-time high max	36.5 C (97.7 F)	0.4 C (0.7 F)	9 years	31 of 100 (Routine)
28 July 1921	Plauen, DE	all-time high max	36.2 C (97.2 F)	1.5 C (2.7 F)	10 years	30 of 100 (Routine)
28 July 1921	Zagreb-Gric, HR	all-time high max	36.8 C (98.2 F)	0.6 C (1.1 F)	0 years	25 of 100 (Routine)
28 July 1921	Peterborough, CA	daily high min	22.2 C (72.0 F)	2.2 C (4.0 F)	43 years	23 of 100 (Routine)
28 July 1921	Freiburg, DE	daily high max	38.5 C (101.3 F)	4.7 C (8.5 F)	25 years	21 of 100 (Routine)
28 July 1921	Ocean Grove, AU	daily rain	10.7 mm (0.4 in)	6.4 mm (0.25 in)	26 years	20 of 100 (Routine)
28 July 1921	Balmoral (Post Office), AU	daily rain	20.6 mm (0.8 in)	9.4 mm (0.37 in)	4 years	20 of 100 (Routine)
28 July 1921	Weissenburg, DE	daily high min	18.8 C (65.8 F)	2.7 C (4.9 F)	25 years	20 of 100 (Routine)
28 July 1921	Beeac (Eurack), AU	daily rain	15.2 mm (0.6 in)	6.1 mm (0.24 in)	4 years	18 of 100 (Routine)
28 July 1921	Ottawa, CA	daily rain	20.3 mm (0.8 in)	7.1 mm (0.28 in)	20 years	18 of 100 (Routine)
28 July 1921	Southampton, CA	daily rain	20.6 mm (0.8 in)	3.3 mm (0.13 in)	31 years	18 of 100 (Routine)
28 July 1921	Fredericton Unb, CA	daily high max	35.0 C (95.0 F)	3.9 C (7.0 F)	12 years	18 of 100 (Routine)
28 July 1921	Beenak, AU	daily rain	36.6 mm (1.4 in)	2.3 mm (0.09 in)	37 years	17 of 100 (Routine)
28 July 1921	Galway, IE	daily low max	16.1 C (61.0 F)	0.6 C (1.1 F)	34 years	17 of 100 (Routine)
28 July 1921	Bamberg, DE	monthly high max	37.3 C (99.1 F)	0.4 C (0.7 F)	10 years	17 of 100 (Routine)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1815 to 1921

Records set or tied on this calendar date in each year from 1815 to 1921. 1921 had 92 records.

Counts for years before the ledger starts come from the same station rules.

Records on 07-28 in each year
Year	Records
1815	1
1832	2
1834	1
1838	1
1846	1
1848	1
1853	1
1857	1
1860	2
1866	2
1867	1
1872	3
1873	1
1874	1
1882	1
1883	3
1884	3
1886	2
1887	2
1888	3
1890	3
1891	8
1892	3
1893	5
1894	4
1895	6
1896	4
1897	4
1898	6
1900	8
1901	14
1902	4
1903	16
1904	23
1905	10
1906	18
1907	39
1908	15
1909	19
1910	18
1911	61
1912	32
1913	54
1914	42
1915	36
1916	134
1917	84
1918	34
1919	53
1920	95
1921	92
1922	82
1923	193
1924	79
1925	361
1926	175
1927	129
1928	341
1929	215
1930	603
1931	464
1932	184
1933	390
1934	533
1935	354
1936	471
1937	315
1938	264
1939	339
1940	507
1941	525
1942	165
1943	429
1944	349
1945	399
1946	380
1947	630
1948	535
1949	496
1950	1,035
1951	320
1952	669
1953	251
1954	355
1955	537
1956	309
1957	298
1958	549
1959	417
1960	416
1961	357
1962	772
1963	484
1964	422
1965	422
1966	349
1967	458
1968	547
1969	737
1970	343
1971	1,161
1972	675
1973	500
1974	343
1975	537
1976	493
1977	724
1978	681
1979	692
1980	1,170
1981	1,315
1982	774
1983	1,389
1984	1,373
1985	627
1986	868
1987	1,202
1988	761
1989	936
1990	757
1991	768
1992	678
1993	1,026
1994	2,266
1995	1,251
1996	1,178
1997	1,024
1998	1,835
1999	985
2000	857
2001	938
2002	866
2003	932
2004	1,345
2005	1,387
2006	1,398
2007	998
2008	923
2009	964
2010	1,306
2011	1,143
2012	731
2013	1,428
2014	713
2015	911
2016	648
2017	476
2018	655
2019	469
2020	721
2021	831
2022	990
2023	765
2024	668
2025	845
2026	863

Download the Data

Data for records on 1921-07-28: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 2	47
2 to 4	25
4 to 6	1
6 to 8	6
8 to 10	1
10 to 12	1
12 to 14	1